Answer:
95%
Step-by-step explanation:
Margin of error is the standard error times critical value.
ME = SE × CV
The standard error for a sample mean is:
SE = σ / √n
SE = 25 / √100
SE = 2.5
If the margin of error is ±5, then the critical value is:
5 = 2.5 CV
CV = 2
Since the sample size is greater than 30, we can approximate the confidence level using normal distribution. The percent between -2 and 2 standard deviations is 95%.
Therefore, there is a 95% probability the sample mean is within ±5 of the population mean.
Answer:
x = - 3
Step-by-step explanation:
4 - (x + 1) = 6
- (x + 1) = 6 - 4
-x - 1 = 6 - 4
-x - 1 = 2
- x = 2 + 1
- x = 3
x = - 3
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4.2-1.6=2.6 miles
the length of the trail minus how far he's already traveled is the distance he has left to go.
Answer:
1/2, 7/11, 3/4
Step-by-step explanation:
Answer:
thatanswer is correct 2.7×10